Underwater very low frequency (VLF) broadband sound source
A wide-band sound source and very low-frequency technology, applied in the field of underwater acoustic transducers, can solve the problems of frictional contact between coils and magnets, low adjustment accuracy, distortion, etc., and achieve the effect of easy installation
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[0048] Specific embodiments: according to the present invention, a kind of underwater very low frequency broadband sound source has been developed, the external dimension is about Φ200*600mm, the mass in the air is about 50kg, the working frequency band reaches 200Hz~2000Hz, and the signal distortion is not more than 5%. The impedance fluctuation in the frequency band is within 2 times, the low impedance does not exceed 40Ω, the working voltage does not exceed 200V, the maximum sound pressure level in the frequency band can reach 165-175dB, and can automatically meet the working depth of 5m-100m, which can meet the needs of laboratories, lakes, etc. It can be used in static ways such as oceans, and it can also be used in dynamic ways in lakes and oceans, such as being placed in a towed platform.
[0049] An underwater very low frequency broadband sound source proposed by the present invention has a schematic structure as figure 1 As shown, the specific installation method is a...
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